日本語
 
Help Privacy Policy ポリシー/免責事項
  詳細検索ブラウズ

アイテム詳細


公開

学術論文

The Electron Capture in 163Ho Experiment ECHo

MPS-Authors
/persons/resource/persons30312

Blaum,  Klaus
Division Prof. Dr. Klaus Blaum, MPI for Nuclear Physics, Max Planck Society;

/persons/resource/persons186043

Door,  Menno
Division Prof. Dr. Klaus Blaum, MPI for Nuclear Physics, Max Planck Society;

/persons/resource/persons30445

Eliseev,  Sergey
Division Prof. Dr. Klaus Blaum, MPI for Nuclear Physics, Max Planck Society;

/persons/resource/persons181461

Filianin,  Pavel
Division Prof. Dr. Klaus Blaum, MPI for Nuclear Physics, Max Planck Society;

/persons/resource/persons206346

Novikov,  Yuri N.
Division Prof. Dr. Klaus Blaum, MPI for Nuclear Physics, Max Planck Society;

/persons/resource/persons37881

Rischka,  Alexander
Division Prof. Dr. Klaus Blaum, MPI for Nuclear Physics, Max Planck Society;

/persons/resource/persons181459

Schüssler,  Rima
Division Prof. Dr. Klaus Blaum, MPI for Nuclear Physics, Max Planck Society;

/persons/resource/persons194676

Schweiger,  Christoph
Division Prof. Dr. Klaus Blaum, MPI for Nuclear Physics, Max Planck Society;

Fulltext (restricted access)
There are currently no full texts shared for your IP range.
フルテキスト (公開)
公開されているフルテキストはありません
付随資料 (公開)
There is no public supplementary material available
引用

Gastaldo, L., Blaum, K., Chrysalidis, K., Goodacre, T. D., Domula, A., Door, M., Dorrer, H., Düllmann, C., Eberhardt, K., Eliseev, S., Enss, C., Faessler, A., Filianin, P., Fleischmann, A., Fonnesu, D., Gamer, L., Haas, R., Hassel, C., Hengstler, D., Jochum, J., Johnston, K., Kebschull, U., Kempf, S., Kieck, T., Köster, U., Lahiri, S., Maiti, M., Mantegazzini, F., Marsh, B., Neroutsos, P., Novikov, Y. N., Ranitzsch, P., Rothe, S., Rischka, A., Saenz, A., Sander, O., Schneider, F., Scholl, S., Schüssler, R., Schweiger, C., Simkovic, F., Stora, T., Szücs, Z., Türler, A., Veinhard, M., Weber, M., Wegner, M., Wendt, K., & Zuber, K. (2017). The Electron Capture in 163Ho Experiment ECHo. European Physical Journal - Special Topics, 226(8), 1623-1694. doi:10.1140/epjst/e2017-70071-y.


引用: https://hdl.handle.net/11858/00-001M-0000-002D-83CC-9
要旨
Neutrinos, and in particular their tiny but non-vanishing masses, can be considered one of the doors towards physics beyond the Standard Model. Precision measurements of the kinematics of weak interactions, in particular of the 3H β-decay and the 163Ho electron capture (EC), represent the only model independent approach to determine the absolute scale of neutrino masses. The electron capture in 163Ho experiment, ECHo, is designed to reach sub-eV sensitivity on the electron neutrino mass by means of the analysis of the calorimetrically measured electron capture spectrum of the nuclide 163Ho. The maximum energy available for this decay, about 2.8 keV, constrains the type of detectors that can be used. Arrays of low temperature metallic magnetic calorimeters (MMCs) are being developed to measure the 163Ho EC spectrum with energy resolution below 3 eV FWHM and with a time resolution below 1 μs. To achieve the sub-eV sensitivity on the electron neutrino mass, together with the detector optimization, the availability of large ultra-pure 163Ho samples, the identification and suppression of background sources as well as the precise parametrization of the 163Ho EC spectrum are of utmost importance. The high-energy resolution 163Ho spectra measured with the first MMC prototypes with ion-implanted 163Ho set the basis for the ECHo experiment. We describe the conceptual design of ECHo and motivate the strategies we have adopted to carry on the present medium scale experiment, ECHo-1K. In this experiment, the use of 1 kBq 163Ho will allow to reach a neutrino mass sensitivity below 10 eV/c2. We then discuss how the results being achieved in ECHo-1k will guide the design of the next stage of the ECHo experiment, ECHo-1M, where a source of the order of 1 MBq 163Ho embedded in large MMCs arrays will allow to reach sub-eV sensitivity on the electron neutrino mass.